Centrifugal separator.



M3343. -P'ATENTEDv0GT.30,-1906.

N. s. BUK. I OENTRIFUGAL SEBARATOR.

APPLIOLTIDH FILED KAY 3, 1905.

3 SHEETS-SHEBT 1.

IIIIIIIIIlIIllIIIlI/l PATENTED OCT. 30. 1906.

'No.- 834,254. 3. 36K.

GENTRIFUGAL SEPARATOR.

APPLICATION FILED MA 3 8HBETE-SHET 2.

I I l l l u e s b e n L w.

1N0. ss4.254.- APATENITED 001:. 30,1906;

' NS-136K.

GENTRIFUGAL SEPARATOR a SHEETS-SHEET a.

APPLICATION FILED MAY 3. 1905.

Wihie $595 2 I .UNITED STATES PATENT OFFICE.

CENTRIFUGAL SEPARATOR.

Specification of Letters Patent. Application filed May 3, 1905 Serial No. 258,728.

Patented Oct. 30, mos.

To all whom it may concern:

Be it known that I,N1Ls SVENSSON Box, a

' subject of the King of Sweden, and a resident so support thefixed hollow body that even wit and high rotary velocities of the rotatin "bination,

. kind set forth, of a supporting-body of Stockholm,"Sweden, have invented new and useful Improvements in Centrifugal Sep arators, of which the following is a specification, reference being had to the drawings a'ccom anying and forming a part hereof.

'1 's invention relates to separators in which the matter under treatment is made to pass from the inner to the, outer'parts of a ollow body placed wholly or partially with-' in the separating vessel and made in one or more pieces cut open chiefly longitudinally and having an elongated shape email to the separating vessel and it has for itsiobject to or loose 1parts oi 'ul'lcl said long incisions hollow body the said parts with their hig centrifugal pressure either will not at all or but slightly need strain the adjacent parts of the partition-plates inserted in the separating vessel, which artitions 'are already subjected to stresses om their own centrifugal forces. The need of such supports is'more particularly felt when in a separating vessel of elongated shape rotating at as great a we loeity as the vessel or itsaccompanylng parts will admit it is desired for reasons connected with the conditions for a proper distribution of the matter under treatment between the partitions to so shape the'said body that its own sustaining power will not even sufiice to resist-the stresses arising therein at a much lower number of revolutions; The'invention consists chiefly in the cornwith-a distributing device of the placed wholly or artly inside the said distri uting device and aving suitable projections against which the walls of the distributing device or projections thereon bear m such a manner I that the centrifugal forces arising in the said I bowl will be wholly or partlymaken up by the distributing device during the rotation of the said supporting-body.-

, shown some em part of a centrifugal separating-bowl and a deto thepresentinvention. Fig.2

ig; ties together a similar parts.

i I 3 shows a' verticalsection of In -t e accompanying drawings I have Figure '1 shows a central vertical section of a s arm 1s ahonzonta section onlme AB 1n Fig. 1

a second constructional form. Fig. 4 is ahorizontal section on lineC D of Fig. 3. Fig; 5 is a-vertical sages 2. When, as in gder-vanes' are in 0118.1)1806, both' with .the cyart 1 of the center tube and with position in the spider ,ing it in place ax ally, '4 of the body 4 5 6 I all% and Fig. 4 in ments of my invention. 1 0

section of a third constructional form, Fig. 6 1s a horlzontalsection on line like reference-numbers indicate same or. corresponding parts ures. Referring to Figs. 1 and 2 l-representsa well-known central pipe of: an Alpha La'val separator, 3 the wings, of theisaid' central pipe, and 2 longitudinal" channels in the said wings; The sustaining-body 4;;{56 here is composed of a tube 4 of square section, providedat each corner with a 'radiall'y-prqect ing vane 5,' the outer edge of which is pro; vided with a longitudinal flange 6, so 'shaped as to form with thevane 5 in cross-section a T, the axially-facing parts of which form abutments for the walls 3', forming the'pas- Figs. 1' and 2; the spilindrical the so-ca led \slime-cup 7,-'the sustainingbody 4 5 6 is introduced from belowinto its throughtheopen bottom of the slime-cup and up through the apertures 9, made in the roof 89f the slimeand' throughout all the'figcup and correspond ng to the vaned sha e i of the sustaining-body. treated is admitted, per part-1 of the center tube and is conducted through the latter whence it rises into the supply-passages 2. The abutment-flanges 6 are arranged leave at the bearing edge a passage for the matter under treatment, admitted from the axial supply-passage 2 as it is made to flow out of the apertures (15 and'22, respectively) at the abutment-surfaces and distribute over allthe feed-sections situated along the flange 6 between adjoining edges of the partitions 10. A hook 18,- secured radially in the upper part of the s'lime-cup,.,supports the bottom end of the sustaining-body 4 5 6, thus keepwhile the square part against the inner parts of the passage-walls 3.

Fig. 3 represents in a vertical section axia horizontal section on line of Fig. 3 another spider device provided with supports according to the present invention.. I

he function and support of said four spider parts 17 12 as usual, through the up- 3 is here efiected The matter to e down into the slime-cupl7,

soas to bears with its outer sides In Figs. 3 and 4 the sustaining-body 4 5 6 I ider '17 1.2 3, formed of four 'by the short vanes 5, pro ecting fromthe spider, so as to allow of cm a go'b lmade therein.

four'parts constituting the spider 17 12 3 is mg in a cylindrical bead 14,

mlet 1, which is likewise made in four parts.

. 4. same manner as in Figs. 3 and 4,is here built together with the slime-cup 7 only. The nut H11 or equivalent part screwed onto the cylinng separators, where th square tube 4, sustaining by means of the axially-facingsides of a longitudinal flange 6 the swelled ends 12 of the spider-wall 17, which is here somewhat strengthened. The spider-walls 3, projecting from the walls 17, form the axial supply-passages 2. In Fig. 4 (on the right) the outer parts of the walls 3 approach each other in such a manner as to provide a radial distributing-passage 1 3, offering sufficient resistance to the matter under treatment, which is here distributed to' the adjacent feed-apertures between the edges of the partitions 19. At the bottom of Fig. 4. the sustaining-body 4t 6 is also shown to carry a vane 16:, projecting radially from the flange 6 through the passage 2 and terminate forming, with the insides of the converging parts of the walls 3, the passages15.

In F igs. 3 and 4 the square part 4 of the sustaining-body is built together with both the center tube 1-, serving as inlet for the matter to be treated, and with the slin1e-cup 7, which has at the top a passage 9 for the inatter supplied to the axial passage 2. The four loose spider-walls 17 12 3, forming the axial passages 2, are held depressed by means of a nut 11 or corresponding device screwed onto 'the cylindrical center tube 1, so as to of the partitions. stresses, supports In order to diminish these may be provided also for these inclined wall portions 3. (See Fig. 6, at the bottom.) From the supportin flange 6 a vane 16 projects radially througdr the axial supply-passage 2, terminating in another longitudinal flange 14, and against the axially-facing sides of this flange the ends of the inclined passage-walls 3'find support.

assages for the matter under treatment are arranged at the place of support by means of recesses and 22 at the edges, as 'in Figs. 1 and 2. evidently can vary. With three passages a triangular and with, for instance, five passages a five-cornered sustaining-body is used, so as to subject the sustaining-mills 4. of the sustaining-body chiefly to tensile stresses. This evidently does not exclude the use of an annular body of sullicient strength for the purpose. The sustaining-body need not axially be made in one piece. The walls of the spider-vanes evidently may also be supported by means of two or more short sustainingbodics situated along the axis and made of sectional shapes similar to those shown in the above. Moreover, the sustaining-body may, as shown in Fig. 1, pass with bottom part more or less deeply into the slime-cup, Where its projecting vanes may serve to carry the entering matter along and. set it into full rotation. All the devices shown combine great resisting power to centrifugal inlluences with facility of cleaning, owing to the ease with which the construction can be taken apart. By this supporting device one of the obstacles is overcome which have hitherto prevented the practical use of high rotary velocities in se )arators when a thorough distribution of tlie matter under treatment to all the separating-sections is to take place. This applies in a still higher degree where a great rotary velocity is combined with an elongated s ape of the separating vessel.

Having now described. my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a centrifugal separating-bowl and an orificed distributing device therein, of side the said distributing device and having projections provided with bearing-surfaces facing the axis of the bowl, thedistributing device bearing against the said surfaces, substantially as and for the purpose set forth.

2. Thecombination with a centrifugal sep arating-bowl and an orificed distributing device therein, of a ho'iow supporting-body placed inside the said distributing device and aving projections 1g. 5 shows in a vertical section axially and Fig. 6, in a horizontal section on line E F of Fig. 5 a modified arrangement of the device shown in igs. 3 and 4. Each of the built together with one part of the cylindrical The sustaimngidevi'ce 4 5 6, acting in the d-rlcal portion of the spider here serves to bind together centrally the four sections of the their ready insertion bove around the sustaining-body 4 5 6. The spider is depressed into place, with its lower end bearing on the roof 8 of the slime cup 7 by means of a cylindrical spiral sprin 20, surrounding the cylindrical portion 1 and compressed by the separator-cover 21, which is screwed on.

Fig. fiat the right the distributing radial channel-section 13 reaches clear into the receased edges of the conical partitions. A portion of the wall 3 of the axial passa e 2, Whichis here considerably inclined to ra ius, underinfluenc'e of the centrifu al force finds somesupport from the recessed edges of the l partitions. In very large or quickly-revolve passages 2 may be large dimensions, the portions of the walls projections having abutment-flanges engag- 3 inclining considerably to the radius may ing by surfaces facing the axisofthe bowl the v. The number of supply-passages a.

create severe stresses in the central portions i, outer edges of the walls of the distributinga supporting-body placed inextending through the orifices of the distributing device, the said.

set forth.

3. The combination with a centrifugal separating-bowl and an orificed distributing de-,

vice therein, of a supporting-body of 'olygonal 7. horizontal section placed insi e the said distributing device and having projec-u tions provided with bearing-surfaces facing the axis of'theboW l the distributing device bearing against the said surfaces, substantiallyas an'd fo'r the purpose set forth.

4.- The combination'with a centrifugal separating b'owl and a distributing device therein divided axially in several arts, of a supportin -b'0dy' placed inside t e said distributingevice and having projectionsextend-- ing outwardl between the said parts of the distributing device,- the said projections having -J3earing-surfaces facing the axis of the is' tributing device bearing against the said surfaces, substan tially as and for the purpose set forth.

" 5. The combination with a centrifugal separating-bowl and an orificed distributing device therein composed of several arts, of a 25 supporting-body inside the same aving radial projections, the latter having abutmentfianges holding together the said parts of the distributing device and other abutments enga ing the outer ed es of the walls'of the distri uting device, su stantially as and for the purpose set forth. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

NI LS svnNssoN 36K. 3 Witnesses:

GARDA LINDKIRs'r, EvoLn DELMAR. 

